High severity8.1NVD Advisory· Published Apr 1, 2025· Updated Apr 2, 2026
CVE-2025-21947
CVE-2025-21947
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix type confusion via race condition when using ipc_msg_send_request
req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<6.1.131
- cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/1e8833c03a38e1d5d5df6484e3f670a2fd38fb76nvdPatch
- git.kernel.org/stable/c/3cb2b2e41541fe6f9cc55ca22d4c0bd260498aeanvdPatch
- git.kernel.org/stable/c/6321bbda4244b93802d61cfe0887883aae322f4bnvdPatch
- git.kernel.org/stable/c/76861630b29e51373e73e7b00ad0d467b6941162nvdPatch
- git.kernel.org/stable/c/e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2nvdPatch
- lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlnvd
News mentions
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